55988920 has 32 divisors (see below), whose sum is σ = 135666720. Its totient is φ = 20672640.

The previous prime is 55988917. The next prime is 55988941. The reversal of 55988920 is 2988955.

55988920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53316 + ... + 54355.

It is an arithmetic number, because the mean of its divisors is an integer number (4239585).

Almost surely, 2^55988920 is an apocalyptic number.

It is an amenable number.

55988920 is an abundant number, since it is smaller than the sum of its proper divisors (79677800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55988920 is a wasteful number, since it uses less digits than its factorization.

55988920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107695 (or 107691 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 46.

The square root of 55988920 is about 7482.5744232851. The cubic root of 55988920 is about 382.5610024169.

The spelling of 55988920 in words is "fifty-five million, nine hundred eighty-eight thousand, nine hundred twenty".